On the genus Ananteris Thorell, 1891 in French Guiana, with description of a new species (Scorpiones: Ananteridae)

Faunitaxys

Revue de Faunistique, Taxonomie et Systématique

morphologique et moléculaire

ISSN (Print) : 2269 - 6016
Volume 14 eae,

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euatoe ! 8 Dép6t légal : Mars 2026

Faunitaxys

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morphologique et moléculaire

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Faunitaxys, 14(18), 2026 : 1 — 12. 1
https://doi.org/10.57800/faunitaxys-14(18)

On the genus Ananteris Thorell, 1891 in French Guiana, with
description of a new species (Scorpiones: Ananteridae)

ERIC YTHIER (1, *) & WILSON R. LOURENCO (2)

(1) BYG Taxa, 382 rue des Guillates, 71570 Romanéche-Thorins, France.

— E-mail : contact@bygtaxa.com

— ZooBank : ZooBank: https://zoobank.org/06FD0852-A88E-49E5-B8E6-E1494B86C4E1 — Orcid : https://orcid.org/0000-0002-3 194-5184

(2) Muséum national d’Histoire naturelle, Sorbonne Universités, Institut de Systématique, Evolution, Biodiversité (ISYEB),
UMR7205-CNRS, MNHN, UPMC, EPHE, CP 53, 57 rue Cuvier, 75005 Paris, France.

— E-mail : wilson.lourenco@mnhn. fr
— ZooBank : https://zoobank.org/58448BD6-79D7-46CE-AFDD-91 EFF2B7D4EF — Orcid : https://orcid.org/0000-0002-2386-363X

* Corresponding author.

Abstract.— One new species belonging to the genus Ananteris Thorell is described from the foot of the

Keywords: Mount Grand Matoury, French Guiana. The description of this new species brings further evidence
about the biogeographic patterns of distribution presented by most species of the genus Ananteris,
which are highly endemic in many natural formations of South America and in particular in French

Scorpions; Guiana. The new taxon described here raises the number of known species for the genus Ananteris in
Ananteridae; French Guiana to 13, and the total number of currently recognized species for the genus to 100. A
Ananteris; geographical distribution map of the species occurring in French Guiana is presented and an
morphology; identification key is proposed.

taxonomy; Ythier E. & Lourenco W. R., 2026. — On the genus Ananteris Thorell, 1891 in French Guiana, with description of a
description; new species (Scorpiones: Ananteridae). Faunitaxys, 14(18): 1 — 12.

new species;
French Guiana.

DOI: https://doi.org/10.57800/faunitaxys-14(18)
ZooBank: https://zoobank.org/FFD 1E27C-E041-4407-BD3B-1A01435B914A
Received: 01/03/2026 — Revised: 03/03/2026 — Accepted: 04/03/2026

Introduction

As already outlined in several publications (e.g. Lourenco, 1991,
2001a, 2016, 2018; Lourenco et al., 2022; Lourenco & Ythier,
2025; Ythier, 2018, 2024a; Ythier et al., 2020, 2025, 2026) the
scorpion fauna of the Guianan region (Guayana floristic province
as defined by Mori, 1991) presents a high species richness and a
great complexity of endemism. French Guiana presents a
remarkable scorpion diversity, with a total of 46 species belonging
to 12 genera and four families (Ananteridae Pocock, 1900,
Buthidae C. L. Koch, 1837, Chactidae Pocock, 1893 and
Hormuridae Laurie, 1896). Although studies on scorpions of
French Guiana can yet be considered as largely incomplete mainly
because the inventory work in this large area concerned only small
portions of its totality, this region already appears as one of the
‘hot-spots’ for biodiversity in South America, with degrees of
specific endemism surpassing 80% for scorpions.

The genus Ananteris Thorell, 1891 was originally established to
accommodate Ananteris balzanii Thorell, 1891, a species described
from the state of Mato Grosso in Brazil. The first species reported
from French Guiana, Ananteris coineaui Lourencgo, 1982, was
described in the revision of the genus by Lourengo (1982). In the
following years, 11 additional species were described from this
region (Lourenco & Monod, 1999; Lourenco, 2001b, 2003, 2012,
2016; Ythier, 2018; Ythier et al., 2020; Lourenco & Ythier, 2025). In
the present note, we describe another new species from French

Reviewer:

Guiana, collected at the foot of the Mount Grand Matoury, raising to
13 the number of known species belonging to the genus Ananteris in
French Guiana, all of them being most certainly endemic elements
of this region. Indeed, most species of the genus Ananteris species
present a high degree of endemicity to small geographic areas,
sometimes to a single habitat or even microhabitat (Lourengo 1982,
2002; Lourengo & Ythier, 2025). In addition to the description of the
new species, updated distribution records are provided for all other
known species occurring in French Guiana, and an identification key
is proposed.

Material and methods

Illustrations and measurements were produced using a Motic
SMZ-171 stereo-microscope with an ocular micrometre, together
with a digital camera Tucsen HD Lite and Adobe Photoshop
software. Habitus photographs were made with Canon EOS RP
and Adobe Photoshop software. Map was made using maps-for-
free.com, openstreetmap.org and Adobe Photoshop software.
Measurements follow Stahnke (1970) and are given in mm.
Trichobothrial notations follow Vachon (1974), morphological
terminology mostly follows Vachon (1952) and Hyjelle (1990),
and chelicerae dentition follows Vachon (1963). Type material is
deposited in the MNHN (Muséum national d’Histoire naturelle,
Paris, France) and EYCP (Eric Ythier Private Collection,
Romanéche-Thorins, France).

Gérard Dupré (France) - ZooBank : https://zoobank.org/B3DFB480-9253-4C7C-80EC-FCD7310DFD78

This is an open access article under the terms of the Creative Commons Attribution-NonCommercial-NoDerivs License, which permits use and
distribution in any medium, provided the original work is properly cited, the use is non-commercial and no modifications or adaptations are made.
BY

NC ND

Copyright 2025. The Authors. Faunitaxys published by Lionel Delaunay on behalf of the AFCFF (Association francaise de Cartographie de la Faune et de la Flore).

2 YTHIER & LOURENCO. — The genus Ananteris in French Guiana

Taxonomic treatment

Family Ananteridae Pocock, 1900
Genus Ananteris Thorell, 1891

Composition and distribution of the genus Ananteris in
French Guiana (in order of description):

- Ananteris coineaui Lourengo, 1982 (Arataye, Saiil, Itoupé)

- Ananteris guyanensis Lourengo & Monod, 1999 (St Eugéne, La Trinité
National Nature Reserve)

- Ananteris sabineae Lourengo, 2001 (Mitaraka)

- Ananteris elisabethae Lourengo, 2003 (Kourou)

- Ananteris intermedia Lourenco, 2012 (St Jean)

- Ananteris polleti Lourenco, 2016 (Mitaraka)

- Ananteri kalina Ythier, 2018 (Mana)

- Ananteris dacostai Y thier, Chevalier & Lourengo, 2020 (Coralie, Bélizon)
- Ananteris mamilihpan Y thier, Chevalier & Lourencgo, 2020 (Mamilihpan)

- Ananteris sipilili Ythier, Chevalier & Lourengo, 2020 (Saut Sabbat,
Mana, Javouhey)

- Ananteris tresor Ythier, Chevalier & Lourengo, 2020 (Trésor Regional
Nature Reserve)

- Ananteris inini Lourenco & Ythier, 2025 (Bellevue Moutain)

- Ananteris duponti sp. n. (Matoury)

Ananteris duponti sp. n.
(Fig. 1-11, 15, Tab. 1)
ZooBank: https://zoobank.org/E74425FF-06F2-4E0C-B212-C069C5513E16

Holotype, adult 2, French Guiana, Matoury, La Chaumiere, at the foot of
Mount Grand Matoury (outside the National Nature Reserve), 4.873494,
-52.359055, 80 m alt., on the ground, S. Dupont, G. Roy & E. Ythier coll.,

07/11/2026 (MNHN).

Paratypes (4 ex.)

- 1 adult 3, French Guiana, Matoury, La Désirée, at the foot of Mount Grand
Matoury (outside the National Nature Reserve), 4.844641, -52.345500, 40 m
alt., on the ground, J. Chevalier, E. Dewynter & M. Dewynter coll., 02/X/2018
(MNHN).

-3 adult 9, same collection data as for preceding (EYCP).

Distribution. — All collected specimens of A. duponti sp. n.
were found at the foot of Mount Grand Matoury, north-west
and south-east of the Mount. One Ananteris specimen was also
observed on the Mount Grand Matoury (Lamirande trails), but
not collected (National Nature Reserve). While this specimen
was not identified, it is highly probable that it belongs to the
new species, considering the location of the type localities of A.
duponti sp. n. The new species is also possibly endemic from
Mount Grand Matoury (Fig. 16, 17).

Etymology. — The specific name honours Mr. Simon Dupont
(National Center for Scientific Research (CNRS) / Insect Biology
Research Institute (IRBI), Tours, France), for his contribution to the
collection of the new species.

Diagnosis. — Species of moderate size when compared with the
average size of other species of the genus (total length 20.1 mm in
male and ranging from 22.2 to 26.9 mm in females). General
coloration yellowish with dark brown pigmented zones on body and
appendages; metasoma with segments yellowish (I-IV) to yellowish
orange (V) with dark brown spots; chelicerae yellowish with
variegated brownish spots over the entire surface; pedipalp chela
fingers entirely covered with dark brown pigmentation except on tip,
pale yellow. Carapace wider than long in female, longer than wide in
male.. Pectinal tooth count ranging from 17 to 18 in males and
females. Metasomal segments with 10-8-8-8-5 carinae. Telson with
a moderately marked granulation in female, smooth in male; ventral
carina moderately marked with some spinoid granules in female,

almost smooth in male. Pedipalp chela fixed and movable fingers
with 6-6 rows of granules. Trichobothriotaxy of type A-beta;
trichobothrium esb on chela fixed finger closer to est than to eb.

Description based on female holotype and one male paratype

Coloration (in alcohol). — Generally yellowish with dark brown
pigmented zones on the body and its appendages. Prosoma: carapace pale
yellow (female) to yellowish (male) with dark brown spots on its entire
surface; eyes surrounded by black pigment. Mesosoma: pale yellow to
yellowish with confluent dark brown spots forming three longitudinal strips.
Metasoma with segments yellowish (I-IV) to yellowish orange (V); dorsal
side of segments I to IV with a triangular dark brown spot; ventral and
lateral sides of all segments with dark brown spots, more or less variegated,
better marked on their posterior half. Telson with vesicle yellowish orange
with dark brown pigmentation on ventral carina and variegated brownish
spots laterally and dorsally; base of the aculeus yellowish (male) to
yellowish orange (female), tip reddish. Venter yellow with dark brown spots
laterally on sternites [V-VII. Chelicerae yellowish with variegated brownish
spots over the entire surface; fingers yellowish with dark brown
pigmentation almost entirely covering the movable finger; teeth reddish.
Pedipalps: femur and patella dark yellow, with dorsal side almost entirely
marked with diffused dark brown spots, except few pale yellow zone
posteriorly; chela hand dark yellow with diffused dark brown spots; fingers
entirely covered with dark brown pigmentation except on tip, pale yellow.
Legs yellowish, intensely marked with dark brown spots.

Morphology. — Carapace with moderately marked granulation over the
entire surface, less marked on the anterior part; anterior margin slightly
emarginated, with a minute central convexity; anterior median, superciliary
and posterior median carinae weak; all furrows moderate to weak; median
ocular tubercle distinctly anterior to the centre of the carapace; median eyes
large and separated by slightly less than one ocular diameter; three pairs of
lateral eyes; carapace wider than long in female, longer than wide in male.
Sternum subpentagonal. Mesosoma: tergites with moderately marked
granulation, similar to that of carapace, better marked posteriorly; median
carina moderate in all tergites; tergite VII pentacarinate, axial carina
incomplete, median and lateral carinae complete. Venter: genital operculum
divided longitudinally, each plate more or less oval in shape. Pectines: tooth
count 17-17 in female holotype, 17-18 in male paratype; basal middle
lamellae of the pectines not dilated; fulcra absent. Sternites smooth;
spiracles linear, elongated; setation moderate. Metasomal segment I with 10
carinae, strongly crenulate; segments II to IV with 8 carinae, strongly
crenulate; dorsal carinae on segments II-IV ending by a stronger spinoid
granule; segment V slightly rounded with 5 carinae; intercarinal spaces
moderately granular. Telson moderately elongated (female) to elongated
(male) with a moderately marked granulation in female, smooth in male;
ventral carina moderately marked with some spinoid granules in female,
almost smooth in male; aculeus short and weakly curved; subaculear tooth
strong and spinoid. Cheliceral dentition as in the family Buthidae (Vachon
1963); fixed and movable fingers with two strongly marked basal teeth;
ventral aspect of both finger and manus with dense, long setae. Pedipalps:
femur pentacarinate; patella and chela with weak to vestigial carinae;
internal faces of femur and patella with several spinoid granules; all faces
weakly granular, almost smooth. Fixed and movable fingers with 6-6 almost
linear rows of granules; two small external and one internal accessory
granule present at the base of each row; three conspicuous granules in the
extremity of the fingers; Trichobothriotaxy; orthobothriotaxy A-beta
(Vachon 1974, 1975). Legs: tarsus with very numerous fine median setae
ventrally; tibial spurs well developed on legs III and IV.

Relationships. — Species of the genus Ananteris are rather homogeneous
in ther morphology, but Ananteris duponti sp. n. can be distinguished
from its congeners by a combination of distinct characters.
The new species most closely resembles A. kalina, described from
Mana in northwestern French Guiana (Fig. 12, 18). Ananteris
duponti sp. n. can however be distinguished notably by the
following main features:

(i) telson with the ventral carina less granulated in male, almost smooth
(better marked spinoid granules in A. kalina);

(ii) different position of trichobothrium esb on chela fixed finger in relation
to eb and est (closer to est in the new species, closer to eb in A. kalina);

Faunitaxys, 14(18), 2026: 1 — 12.

Fig. 1-4. Ananteris duponti sp. n., habitus.

1-2. Female holotype, dorsal (1) and ventral (2) aspects. 3-4. Male paratype, dorsal (3) and ventral (4) aspects.

4 YTHIER & LOURENCO. — The genus Ananteris in French Guiana

(iii) distinct morphometric ratios for some structures in male, notably the
telson and pedipalp chela, less slender in the new species (Tab. 1).
Moreover, the known geographical distributions of both species are far from
each other (Fig. 18) and the biotopes in which they occur are significantly
different (moist rainforest in Matoury for the new species, coastal white-
sand dry forest in Mana for A. kalina).

Ananteris duponti sp. n. can also be easily distinguished from the
geographically closest species, A. tresor and A. dacostai described
respectively from the Trésor Nature Reserve and Coralie (Fig.
13-14, 18), notably by the following main features:

(® chelicerae with variegated brownish spots over the entire surface (large
variegated dark brown spot at the base of fingers in A. dacostai);

(ii) pedipalp chela fingers entirely covered with dark brown pigmentation
except on tip, pale yellow (fingers entirely yellowish in A. tresor);

(iii) metasomal segments with 10-8-8-8-5 carinae (10-10-8-8-5 in A.
dacostai);

(iv) different position of trichobothrium esb on chela fixed finger in
relation to eb and est (closer to est in the new species, closer to eb in A.

(v) telson with subaculear tooth smaller and more rounded in female of A.
tresor;

(vi) different position of trichobothrium esb on chela fixed finger in
relation to eb and est (closer to est in the new species, closer to eb in female
A. tresor, equidistant from eb and est in male A. tresor and both sexes of A.
dacostai);

(vii) distinct morphometric ratios for some structures, notably the
carapace, wider than long in female (longer than wide in A. tresor and A.
dacostai), telson (slender than both species in female, bulkier than both
species in male) and pedipalp chela (slender than both species in female,
bulkier than 4. dacostai in male) (Tab. 1).

Finally, the new species can be distinguished from other Ananteris
species occurring in French Guiana notably by the following main
features:

(D total length 20.1 mm in male (males of A. elisabethae, A. intermedia
and A. polleti significantly smaller with 17.7 mm, 9.3 mm and 14.7 mm,
respectively, and male of A. mamilihpan significantly larger with 27.8 mm);

Fig. 5-10. Ananteris duponti sp. n., female holotype.

5. Metasomal segment V and telson, lateral aspect. 6-10. Trichobothrial pattern. 6-7. Chela, dorso-external (6) and ventral (7) aspects.
8. Femur, dorsal aspect. 9-10. Patella, dorsal (9) and external (10) aspects. Trichobothria discussed in this work are indicated.

Faunitaxys, 14(18), 2026: 1 — 12.

(ii) chelicerae with variegated brownish spots over the entire surface (large
variegated dark brown spot at the base of fingers in A. coineaui, thin dark
zone at the base of the fingers in A. guyanensis, without any pigmentation or
a thin dark zone at the base of fingers in A. spilili, without any pigmentation
in A. elisabethae, A. inini and A. sabineae);

(iii) pedipalp chela fingers entirely covered with dark brown pigmentation
except on tip, pale yellow (fingers entirely yellowish in A. elisabethae, A.
intermedia, A. mamilihpan and A. sabineae);

(iv) metasomal segments with 10-8-8-8-5 carinae (10-10-8-8-5 in A.
coineaui, A. guyanensis, A. intermedia, A. mamilihpan, A. polleti and A.
sipilili);

(v) pectines with 17-18 teeth in male (pectines significantly smaller in
male of A. polleti with 11-12 teeth).

Biogeographic comments

Starting on the early 1980s, a number of biogeographic models were
defined attempting to explain the particular patterns of distribution
and differentiation presented by the families, genera and species of
scorpions distributed in South America or even in the entire
Neotropical region (Lourengo, 1986, 1987, 1988, 1994, 2001a,
2002; Lourengo & Ythier, 2025). Even if a priori, the Guayana
region, as defined by Mori (1991) should not be dissociated from the

remainder of tropical South America, some arguments apparently
justify the biogeographic particularities of this region.

Most biogeographic theories proposed since the late 1970s, always
insisted on the role played by the climatic-vegetational fluctuation
which most certainly played an important role in the present
distribution of several populations, including those of scorpions.
These fluctuations started on the late Cenozoic period but probably
have an even more important impact during the Pleistocene time
(Haffer, 1981, 1993). Authors coined as ‘dispersalists’, adopted in
most cases the refuge hypothesis (Haffer, 1969) as the major
mechanism for genetic differentiation. This hypothesis proposed the
alteration of dry and wet climates as consequence of glacial and
interglacial phases. Glacial aridity led to the fragmentation of forests
into refugia of wet, stable climates surrounded by large regions of
dry savannas, while interglacial would have been characterized by
forest expansion and coalescence through the entire Neotropical
lowlands. The associated diversification model suggests allopatric
speciation within the forest refugia, which are still recognizable by
their higher biodiversity and endemism.

Alternatively, other authors suggested a number of particularities
for the Guayana region to explain its outstanding degree of
biodiversity and endemism; in particular of the Highlands. These

Fig. 11-14. Ananteris spp, chelicerae, dorsal aspect.

11. Ananteris duponti sp. n., female holotype. 12. Ananteris kalina, male paratype. 13. Ananteris tresor, male holotype. 14. Ananteris
dacostai, male holotype. (For other Ananteris species, see notably Ythier et al., 2020).

YTHIER & LOURENCO. — The genus Ananteris in French Guiana

a a A cs es EGA ERIS Hy Bab
a ° ~ 4 ‘ '

Fig. 16. Natural habitat of Ananteris duponti sp. n. at the foot of Mount Grand Matoury, French Guiana.

Faunitaxys, 14(18), 2026: 1 — 12. 7

\
\ »
—s
\
\ Sf

\ Fa

\ ea

)

f

( om

Balata

La Chaumiere

Concorde

Fig. 17. Type localities of Ananteris duponti sp. n. at the foot of Mount Grand Matoury, French Guiana (red stars) and
locality of an observed Ananteris specimen (not collected) supposed to belong to the new species (yellow star). Green line
= boundaries of the Mount Grand Matoury National Nature Reserve.

propositions were done based on some new palaeoecological
findings that probably challenge traditional views (Berry et al.,
1995). The Guayana Highlands apparently played a major role in
the current patterns of Neotropical diversity first of all because of
their large area and their geographical position, between the
Orinoco and the Amazon basins, but equally because of the
contacts with the Caribbean and the Amazon biogeographical
regions. In this sense, the Guayana Highlands would have been
important in promoting the emergence of new taxa, and their
subsequent centrifugal spreading to lower terrains during glacial
downward migrations, thus, acting as ‘biodiversity pumps’ for
both inner and coastal lowlands (Berry et al., 1995). The tepuian
slopes would have been decisive in the evolution of the
Guayanan biota because of their intermediate topographical
position. As stated by Berry eft al. (1995), these almost
scientifically unknown forest environments have harboured both
highland and lowland taxa in their vertical migration during
respectively glacial or interglacial periods, thus becoming key
scenarios for genetic interchange and, consequently, decisive
evolutionary localities).

To conclude, we recall that the elements of the family
Ananteridae can be ranged in a lower evolutionary gradient
among buthoids (Louren¢go, 2016), and most species of this
family can be considered as presenting reduced populations. In
its globality however, this family presents a wide range of
distribution over different continents, including Africa, tropical
America, and Asia (Ythier, 2024b). The patterns of distribution
presented by the elements of the family Ananteridae suggest a
panbiogeographical model and this familial group was most
certainly dominant over all emerged lands on early Cenozoic.
The present and extremely located zones of distribution of each
Ananteris population can be attributed to more recent geological
and palaeoclimatical vicissitudes which took place from the
middle to the end of the Cenozoic epoch and in particular during
the more recent Pleistocene period. These patterns correspond
well to the events defined in relation to the scales used in
scorpion biogeography, defined as Millennial/Pleistocene and
ecological biogeography (Lourengo, 1996).

YTHIER & LOURENCO. — The genus Ananteris in French Guiana

90 km

ST-LAURENT
DU-MARQ

KOUROU

Si OU
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Wah mist ae
Da

P %
iy 1 Ny yn 4

dsb Savn

ST-GEOKGES
DE-L’OYAPOCK

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att
Ananteris coineaui

on $3 ss shy ate pe i SM Deas ; . Ananteris dacostai
Mac t Lt SEMEL, SANE ; Y ¢
Sin fe Pe hy MEN rr

VAD

Ananteris elisabethae
‘ iy, ; ib ‘ ~ ‘ ee i _ Ananteris guyanensis
Ananteni inini
Ananteris intermedia
Ananteris kalina
Ananteris mamilinpan
Ananteris Rolleti
Anantetis eaiiieae
Anabteris sip pilili
a ¢

Ananteris duponti sp: n. Of

Fig. 18. Topographic map of French Guiana showing the known distribution of Ananteris species.

Faunitaxys, 14(18), 2026: 1 — 12.

Acknowledgements

We are most grateful to J. Chevalier (Awala Yalimapo, French
Guiana), E. Dewynter and M. Dewynter (Cayenne, French
Guiana) for the collection of the paratype specimens of the new
species.

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the genus Ananteris Thorell, 1891 (Scorpiones: Buthidae) in

10

YTHIER & LOURENCO. — The genus Ananteris in French Guiana

Key to the species of the genus Ananteris described from French Guiana

The following identification key is proposed for the 13 species of Ananteris described from French Guiana, modified from a
previous key proposed by Ythier ef al. (2020). This key must be considered as imperfect, provisional and susceptible to
possible exceptions, hence it is to be used with caution and should not be the only tool for identifying a specimen. If there is
any doubt, original descriptions should also be consulted. Finally, most Ananteris species are endemic to small geographic
areas; the locality should therefore also be taken in consideration as a parameter in identification.

12.

@helicerac withmeticulan pattem (vanesatedispots) nearer eee ener reer rrr tnt 2
Cheliceraewithout reticular patterminss ane eee ten ie eich teen ie lier ieee 9
WVenyasmallispecies!Omimiinimale)ieae ae ede cir ee ieee ieee A. intermedia
arser species (iS=24:mmbinimale)iyers yes oe Re ee ee een ee me runner ee 3
Chelicerac withireticularnpattermmuncompletcnma rrr ee eee ee eer ce etre 4
Reticular pattern complete, over the entire surface of the chelicerae ......... 1... eee eect ences 6
Chelicerae with variegated dark brown spots covering the distal half; chela fingers yellowish............... A. tresor
Only a large dark variegated dark brown spot anteriorly, at the base of fingers; chela fingers brownish with tip pale yellow... . 5
Movable fingers with six rows of granules; metasoma with all segments reddish yellow................. A. dacostai
Movable fingers with seven rows of granules; metasomal segments I to III reddish yellow, IV and V darker,
COIS Lip seer tee error eee ee rar eee ete re err aeee Merer cee edit emcee ner em een recy nr ree gee a A. coineaui
Small species (15 mm in male); pectines with only 11 to 12 teeth in male.............. 0... cece eee eee A. polleti
Larger species (19-28 mm in male); pectines with 16 to 18 teeth in male.......... 2... eee eee eee ee 7

General coloration pale yellow with chela fingers pale yellow; metasomal segments with 10-10-8-8-5
CATINA CH peer gerne Serre NON ce yee ROT SEEN se SRE Pee Toe eae A. mamilihpan

General coloration dark yellowish with chela fingers brownish with tip pale yellow; metasomal segments with
MO=82 828253 C Aili ac eraser yee eee eee ee reece EE ee 8

Chela fixed finger trichobothrium esb closer to eb; telson with ventral carina almost smooth; coastal white-sand dry
forestibrotope ss ciarececc ce eter restos eceruces ce cease rere eee coaches yeh canes cece emncee ope cu oe eacaeey eh chen By ecentces coe reser, see eeemeece ora? A. kalina

Chela fixed finger trichobothrium esb closer to est; telson with ventral carina better marked with spinoid granules; moist
LAIMLOLESDIOLOPCy eee yey ee ee eee ey aa oC yay Melee ene eee eee eaters ae heen nny: A, duponti sp. n.

Movable fingers with six rows of granules; metasoma yellowish to yellowish orange with segments V or IV-V only

Slighthyadarkerey ty: tna east tree eee ene Sere eT ee eee eee 10
Movable fingers with seven rows of granules; metasoma reddish yellow to yellowish brown with segments V or IV-V
SiomimicantlyadankersreddishitosmeddiShi bro wintee rearrested 12
General coloration pale yellow without spots or pigmented zones on the body and appendages; chela fingers
a Clo Wa Shaya epg ereseecncr ees eee event rer cate ey eveneunee tae deepen exceian tncoan vaste, etcetera vreau warmaieta charatyavers fe Selva nuee A. elisabethae
General coloration yellowish to reddish yellow with brownish variegated pigmented zones on the body and appendages;
Chelagingersibrowanis mavyitingoip yp lle ay ello; yyae geese meen eee eset we rset meerntrerseta 11
Chelicerae yellowish without any spots over their entire surface; metasomal segments with 10-8-8-8-5 carinae........ A. inini

Chelicerae yellowish without spots or with only a thin dark zone at the base of fingers; metasomal segments with
OZ eS cSecORCATIN AC mtrarre sete enseere eer sere teeny se ee eee Ret a Re et nee ene gee ee ee ene ee A. sipilili

Chelicerae yellowish without any spots over their entire surface; chela fingers pale yellow; metasomal segments with
NOZ828=S20sCaliMach pre eee erry Cee ey pee ear rs ee Se Er CPS a eee ee ce sete Ts eee Caer: A, sabineae

Chelicerae with only a thin dark zone at the base of fingers; chela fingers brownish with tip pale yellow; metasomal
segments withplO=10-8-8-5'Caninac err enero eee) Cry cee eae eer eee ee ea ee A. guyanensis

Faunitaxys, 14(18), 2026: 1 — 12.

Table. I. Morphometric values (in mm) and selected morphometric ratios of adult specimens of Ananteris duponti sp. N.,
Ananteris tresor, Ananteris dacostai and Ananteris kalina.
Abbreviations: L = length, W = width (in carapace it corresponds to posterior width, in telson it corresponds to vesicle width), D = depth
(in telson it corresponds to vesicle depth).

A. duponti sp. n. A. tresor A. dacostai A. kalina
G holotype | 3 paratype | Gholotype | paratype | ¢ holotype Q 3 holotype
(Chaumiére) (Désirée) (Trésor) (Trésor) (Coralie) (Bélizon) (Mana)
Total length (including telson) 222) 20.1 22.6 30.0 21.8 21.9 18.9
Carapace (L-W) 2.5-2.6 2.3-2.1 2.6-2.4 375-3). 2.5-2.3 2.6-2.3 2.2-2.1
Mesosoma (L) 6.7 4.0 Se) 8.6 5.4 7.1 5.1
Metasoma (L) 9.8 10.6 11.4 13.6 10.6 O) 8.4
Segment I (L-W) 1.3-1.5 1.4-1.4 1.4-1.4 1.7-2.1 1.3-1.3 1.2-1.5 1.0-1.2
Segment II (L-W) 1.4-1.4 1.5-1.4 1.6-1.4 2.0-2.0 1.6-1.3 1.4-1.3 1.3-1.1
Segment III (L-W) 1.6-1.4 1.7-1.4 1.8-1.4 2.3-2.0 1.7-1.3 1.4-1.3 1.2-1.1
Segment IV (L-W) 2.2-1.4 2.3-1.4 2.5-1.4 2.9-2.0 2.4-1.3 2.0-1.3 1.8-1.1
Segment V (L-W-D) 3.3-1.4-1.4 3.7-1.4-1.4 4.1-1.4-1.5 4.7-2.0-1.8 3.6-1.3-1.4 3.2-1.3-1.3 3.1-1.3-1.1
Telson (L-W-D) 3.2-0.8-0.8 | 3.2-0.7-0.8 | 3.4-0.7-0.7 | 4.3-1.3-1.2 | 3.3-0.7-0.7 | 3.0-0.8-0.8 | 3.2-0.5-0.5
Pedipalp (L) 8.6 8.7 9.0 11.5 8.6 8.5 Woes
Femur (L-W) 2.3-0.7 2.3-0.6 2.5-0.6 3.0-0.9 2.4-0.6 2.3-0.7 2.1-0.4
Patella (L-W) 2.9-0.9 2.9-0.7 2.9-0.8 3.7-1.3 2.7-0.6 2.8-0.8 2.2-0.5
Chela (L-W-D) 3.4-0.5-0.5 | 3.5-0.5-0.5 | 3.6-0.5-0.5 | 4.8-0.8-0.8 | 3.5-0.4-0.4 | 3.4-0.6-0.6 | 2.9-0.3-0.3
Movable finger (L) 2.6 2.6 2.6 3), 7/ 2) Drs) 1.9
Morphometric ratios
Carapace L/W 0.96 1.10 1.08 1.09 1.09 1.13 1.05
Metasoma I L/W 0.87 1.00 1.00 0.81 1.00 0.80 0.83
Metasoma V L/W 2.36 2.64 2.93 D3) ald 2.46 2.38
Metasoma V L/D 2.36 2.64 213 2.61 Zest 2.46 2.81
Telson L/W 4.00 4.57 4.86 3.31 4.71 3.75 6.40
Telson L/D 4.00 4.00 4.86 3.58 4.71 Bes 6.40
Pedipalp chela L/W 6.80 7.00 7.20 6.00 8.75 5.67 9.67
Pedipal chela L /Mov. finger L 1.31 1.35 1.38 1.30 1.40 1.36 1.53

12 YTHIER & LOURENCO. — The genus Ananteris in French Guiana

French Guiana, with description of four new species. Arachnida Authors contribution |
— Rivista Aracnologica Italiana, Anno VI, Vol. XXVIII: 2-33. Publisher correspondence. — EY

Ythier E., Chevalier J. & Lourenco W. R., 2025. — Cloud forest Writing the article. —EY, WL
scorpions: a new species of Guyanochactas Lourenco, 1998 Description. — EY, WL
(Scorpiones, Chactidae) from Mount Itoupé in French Article proofreading. — EY, WL

Guiana. Faunitaxys, 13 (48): 1-9. Bibliographic work. —EY, WL
Ythier E., Chevalier J., Moreau L. & Murienne J., 2026.-—A Material study. —- EY, WL
phylogenomic analysis of the genus Auyantepuia Author of the figures. — EY (except Fig. 17, see Credits).
(Scorpiones: Chactidae) in French Guiana with the
descriptions of two new species. European Journal of ' EY = Ythier E.— WL = Lourengo W. R.
Taxonomy, 1034: 31-57.

Résumé

Ythier E. & Lourenco W. R., 2026. — A propos du genre Ananteris Thorell, 1891 en Guyane Frangaise, avec la description d’une nouvelle espéce
(Scorpiones: Ananteridae). Faunitaxys, 14(18): 1 — 12.

Une nouvelle espéce appartenant au genre Ananteris Thorell est décrite du pied du Mont Grand Matoury, en Guyane Francaise. La
description de cette nouvelle espéce apporte des éléments supplémentaires concernant les schémas biogéographiques de répartition
observés chez la plupart des espéces du genre Ananteris, présentant un fort endémisme dans de nombreuses formations naturelles
d’Ameérique du Sud, et en particulier en Guyane frangaise. Le nouveau taxon décrit ici porte a 13 le nombre d’espéces d’ Ananteris
connues en Guyane frangaise, et a 100 le nombre total d’espéces actuellement reconnues pour ce genre. Une carte de la répartition
géographique des espéces présentes en Guyane frangaise est présentée et une clé d’ identification est proposée.

Mots-clés. — Scorpions, Ananteridae, Ananteris, morphologie, taxonomie, description, nouvelle espéce, Guyane Frangaise.

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— Integrative Systematics (Allemagne)

— Israel Journal of Entomology (Israel)

— Klapalekiana (République Tchéque)

— Koleopterologische Rundschau (Allemagne)

— Memorie del Museo Civico di Storia Naturale di Verona (Italie)
— Nova Supplementa Entomologica (Allemagne)

— Proceedings of the Entomological Society of Washington (USA
— Revue suisse de Zoologie (Suisse)

— Spixiana (Allemagne)

— Zoosystematica Rossica (Russie)

Faunitaxys

Volume 14, Numéro 18, Mars 2026

SOMMAIRE

A propos du genre Ananteris Thorell, 1891 en Guyane Francaise, avec la description d’une
nouvelle espéce (Scorpiones: Ananteridae).

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CONTENTS

On the genus Ananteris Thorell, 1891 in French Guiana, with description of a new species
(Scorpiones: Ananteridae).

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Illustration de la couverture :

Mount Grand Matoury, French Guiana.

Crédits:

Eric Ythier : Fig. 1-16, 18 & couverture.
OpenStreetMap (openstreetmap.org) : Fig. 17.

Publié par |’ Association Frangaise de Cartographie de la Faune et de la Flore (AFCFF)